appulse vs go-slow

appulse

noun
  • An energetic movement towards or against something; a push, a strike. 

  • A close approach of two heavenly bodies; a conjunction or occultation. 

go-slow

noun
  • Deliberate slow working as a protest during an industrial dispute. 

  • A period of time spent in an unusually slow fashion. 

How often have the words appulse and go-slow occurred in a corpus of books? (source: Google Ngram Viewer )